@Override
public RandomAccessFilter buildRandomAccessFilter(String value, Properties prop) throws IOException
{
MultiValueFacetFilter f= new MultiValueFacetFilter(new MultiDataCacheBuilder(getName(), _indexFieldName), value);
AdaptiveFacetFilter af = new AdaptiveFacetFilter(new SimpleDataCacheBuilder(getName(), _indexFieldName), f, new String[]{value}, false);
return af;
}